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The tornado was the first F5 or EF5 tornado in Iowa since one hit Jordan on June 13, 1976, and the second deadliest in Iowa since official record-keeping began in 1950. The deadliest tornado affected the Charles City area on May 15, 1968, and killed 13 while producing F5 damage. [ 12 ]
Tornado outbreak of June 27, 1953; May 1960 tornado outbreak sequence; Tornado outbreak sequence of April 23–30, 1961; Tornado outbreak sequence of May 14–31, 1962; Tornado outbreak sequence of June 1966; 1967 St. Louis tornado outbreak; Tornado outbreak of April 30 – May 2, 1967; 1968 Hansell-Charles City tornado; 1968 Oelwein tornado
Prior to 1950 in the United States, only significant tornadoes are listed for the number of tornadoes in outbreaks. Due to increasing detection, particularly in the U.S., numbers of counted tornadoes have increased markedly in recent decades although the number of actual tornadoes and counted significant tornadoes has not. In older events, the ...
The weather service's Storm Prediction Center issued a tornado watch for far western Iowa counties around 11:15 a.m. Tuesday. A second watch, issued around 1:15 p.m. covered the rest of the state.
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Since its initial usage in May 1999, the National Weather Service (NWS) in the United States has used the tornado emergency bulletin — a high-end classification of tornado warning — sent through either the issuance of a warning or via a "severe weather statement" that provides updated information on an ongoing warning—that is issued when a violent tornado (confirmed by radar or ground ...
The only confirmed tornado so far in Polk County was in Pleasant Hill, A tornado touched down in the Des Moines suburb on Friday at 8:50 p.m., lasting until 9:02 p.m.
There were 1,243 preliminary filtered reported tornadoes in 2020 in the United States in 2020, [1] and 1,086 confirmed tornadoes in the United States in 2020. Worldwide, at least 93 tornado-related deaths were confirmed with 78 in the United States, eight in Vietnam, two each in Canada, Indonesia, and Mexico, and one in South Africa.